I've called Slife a few times and always have had excellent service! One time it was the dead of winter and I was pregnant and our furnace stopped working on a Sunday night. As you can imagine, the expletives were flying!
Slife came out and fixed our issue and it was very reasonable in cost. They even showed my husband what to look for the next time to cut down on diagnosis time and how to replace the thing that broke in case it happened again. Clearly, I'm up on all the HVAC lingo ;)
I only call Slife. They are lifesavers!